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Analog Devices Inc./Maxim Integrated MAX20419ATGE/V+
- Part No.:
- MAX20419ATGE/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-WFQFN Exposed Pad
- Datasheet:
-
MAX20419ATGE/V+.pdf
- Description:
- IC REG BCK BST 1.25V TRPL 24TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:490
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Product details
Overview
MAX20419ATGE/V+ from Analog Devices is a high-efficiency, 3-output automotive-grade DC-DC converter IC featuring a synchronous 750mA boost regulator (fixed 5V), two synchronous buck converters (up to 3.6A each), ±1.4% output voltage accuracy on buck outputs, ±1.9% on boost output, and ASIL-C compliance for safety-critical ADAS power rails.
For engineers reviewing the MAX20419ATGE/V+ datasheet, MAX20419ATGE/V+ pinout, MAX20419ATGE/V+ application, or MAX20419ATGE/V+ equivalent, key selection criteria include factory-preset output voltages, 2.2MHz fixed-frequency PWM operation with skip mode, integrated low-RDS(ON) switches, programmable windowed watchdog, and individual RESET outputs with shorted-pin detection.
Technical Context
The MAX20419ATGE/V+ integrates three independent switching regulators-OUT1 (boost, fixed 5V), OUT2 and OUT3 (buck, 0.8V–3.8V programmable in 25mV steps)-all operating from a common 3.0V–5.5V input supply. It uses current-mode control with forced-PWM and skip modes, enabling stable regulation across load transients and light-load efficiency optimization.
Its diagnostic architecture includes redundant internal references, open-pin fail-safe behavior, PV overvoltage detection, and per-output OV/UV monitoring with ±1.3% accuracy. All functions are qualified for -40°C to +125°C operation and designed to meet ASIL-C requirements per ISO 26262 without external redundancy components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Configuration | 1x boost (5V fixed, 750mA) + 2x buck (0.8V–3.8V, 3.6A each) |
| Input Voltage Range | 3.0V to 5.5V - supports direct connection to automotive battery rail with transient tolerance |
| Switching Frequency | 2.2MHz fixed - enables all-ceramic output filtering and compact PCB layout |
| Output Voltage Accuracy | ±1.9% (OUT1), ±1.4% (OUT2/OUT3) - ensures SoC core and I/O rail stability across temp/load |
| Operating Temperature | -40°C to +125°C - qualified for under-hood ADAS ECU deployment |
| Functional Safety | ASIL-C compliant - includes redundant reference, open-pin fail-safe, and shorted-pin detection on RESET outputs |
| Protection Features | Overcurrent, overtemperature, input overvoltage, and per-rail OV/UV monitoring - reduces need for external supervision ICs |
Pinout & Package
MAX20419ATGE/V+ is housed in a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = GND). The package supports high-power density and efficient heat dissipation in space-constrained automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1, EN2, EN3 | Enable inputs for OUT1, OUT2, OUT3 | Independent sequencing control; high-active, internally pulled down |
| RESET1, RESET2, RESET3 | Open-drain reset outputs | Assert low on OV/UV fault; shorted-pin detect prevents false resets |
| WDI, WDS | Watchdog input and status | Programmable windowed watchdog with timeout detection for host MCU supervision |
| PV, PV_OV | Main input supply and overvoltage sense | PV monitors input rail; PV_OV triggers shutdown if >6.2V (typical) |
| LX1–LX3 | Switch node outputs | Connect to external inductors; require low-ESR ceramic caps and proper layout for EMI control |
| PGND1–PGND3 | Power ground returns | Separated grounds minimize cross-regulator noise coupling and improve PSRR |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous boost + dual buck topology | Single-chip solution replaces discrete DC-DC + LDO combinations for multi-rail SoC power |
| Factory-configurable buck outputs | 0.8V–3.8V in 25mV steps eliminates external resistor networks and improves BOM consistency |
| 2.2MHz fixed-frequency PWM + skip mode | Enables small inductor/capacitor selection while maintaining >85% efficiency at 10% load |
| Integrated windowed watchdog | Reduces need for external watchdog IC in ASIL-C systems; configurable timeout and window width |
| Per-output RESET with shorted-pin detection | Prevents system lockup due to PCB-level shorts on reset lines; no external pull-up required |
| ASIL-C diagnostic coverage | Includes redundant reference, open-pin fail-safe, and PV overvoltage detection - meets ISO 26262 hardware metrics |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Supply |
|---|---|
Use Scenario: Dual-camera ECU requiring isolated 5V imaging rail and two independently sequenced 1.1V/1.8V SoC rails. IC Role / Device Role / Timing Role: Primary power management IC delivering regulated, monitored, and sequenced outputs with fail-safe reset signaling. Use Value: Eliminates need for separate boost + dual buck + watchdog ICs; ASIL-C diagnostics reduce functional safety validation effort. | Use Scenario: Central display unit with quad-core application processor, GPU, and DDR memory demanding tight voltage tolerances and dynamic load response. IC Role / Device Role / Timing Role: Multi-output PMIC providing core, I/O, and memory rails with synchronized soft-start and independent enable control. Use Value: ±1.4% buck accuracy maintains SoC stability during burst-mode video decoding; 2.2MHz switching minimizes audible noise in cabin environment. |
| Radar Sensor ECU Power | Domain Controller Low-Voltage Distribution |
Use Scenario: 77GHz radar ECU needing clean 5V analog supply and 1.2V digital rail with fast transient recovery for chirp generation. IC Role / Device Role / Timing Role: High-PSRR, low-noise power source with current-mode control and dedicated PGND pins per output. Use Value: Separated power grounds and 2.2MHz operation suppress switching noise coupling into RF front-end; ±1.9% boost accuracy ensures ADC reference stability. | Use Scenario: Zonal architecture domain controller aggregating multiple sensors and actuators, requiring flexible, monitored low-voltage distribution. IC Role / Device Role / Timing Role: Configurable power hub with programmable outputs, windowed watchdog, and diagnostic reporting via RESET signals. Use Value: Factory-set voltages accelerate design-in; shorted-pin detection on RESET outputs prevents cascading failures in distributed harness environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-output automotive PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65941201RGER | 3-output (2 buck + 1 LDO), lower max current (2.5A buck), no integrated watchdog, supports JTAG debug interface | Targeted at TI-based Jacinto processors; lacks ASIL-C diagnostics and boost capability | Choose when using TI SoCs and diagnostic requirements are ASIL-B or below |
| MPQ4333GQ-AEC1 | Dual buck only (no boost), 3.5A/channel, no integrated watchdog or RESET outputs, AEC-Q100 Grade 1 only | Cost-optimized for non-safety-critical infotainment displays; no functional safety features | Choose for cost-sensitive, non-ASIL applications where 5V boost is provided externally |
Compared with TPS65941201RGER and MPQ4333GQ-AEC1, the MAX20419ATGE/V+ uniquely combines boost + dual buck, ASIL-C compliance, and integrated windowed watchdog-making it the only single-chip solution for safety-critical ADAS ECUs requiring 5V imaging rail and dual SoC supplies.
Availability
MAX20419ATGE/V+ is available at Aetrix Electronics and suitable for Advanced Driver-Assistance Systems (ADAS), automotive infotainment systems, and SoC power delivery applications requiring stable component supply, long-term automotive qualification, and functional safety support.
Supply support for MAX20419ATGE/V+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving automotive, industrial, communications, and healthcare markets with precision signal chain and power solutions.
The MAX20419ATGE/V+ belongs to Analog Devices' automotive-qualified power management IC portfolio, engineered specifically for ASIL-C-compliant ADAS and domain controller power architectures requiring integrated diagnostics, high efficiency, and compact multi-rail delivery.
FAQ
What is the output voltage configuration of the MAX20419ATGE/V+?
The MAX20419ATGE/V+ provides three regulated outputs: OUT1 is a fixed 5V boost converter (750mA), while OUT2 and OUT3 are synchronous buck converters with factory-preset voltages ranging from 0.8V to 3.8V in 25mV steps. Each output features independent enable and reset signaling, and all are specified for ±1.4% (buck) or ±1.9% (boost) accuracy over temperature and load.
Does the MAX20419ATGE/V+ support functional safety standards?
Yes, the MAX20419ATGE/V+ is designed to meet ASIL-C requirements per ISO 26262. It includes redundant internal voltage references, open-pin fail-safe behavior, shorted-pin detection on RESET1–RESET3, input overvoltage protection, and per-output OV/UV monitoring with ±1.3% accuracy - all verified and documented in the official Analog Devices safety manual for MAX20419ATGE/V+.
What package type and thermal characteristics does the MAX20419ATGE/V+ use?
The MAX20419ATGE/V+ uses a 24-pin, 4mm × 4mm TQFN package with exposed thermal pad (pin 24 = GND). It operates across -40°C to +125°C ambient and is rated for continuous operation at full load in automotive under-hood environments when mounted on a 2-layer PCB with ≥2 cm² copper pour under the exposed pad.
Can the MAX20419ATGE/V+ be used without external compensation components?
Yes, the MAX20419ATGE/V+ integrates full internal compensation for all three regulators. No external compensation network is required for stable operation. The device is optimized for use with standard ceramic output capacitors and low-DCR inductors, as validated in the typical operating circuit shown in the MAX20419ATGE/V+ datasheet.
How does the MAX20419ATGE/V+ handle light-load efficiency?
The MAX20419ATGE/V+ automatically transitions from forced-PWM to pulse-frequency-modulation (skip) mode below ~10% load to maintain high efficiency. This mode reduces switching losses while preserving output regulation, achieving >85% efficiency at 10mA load on all outputs - critical for always-on ADAS subsystems where quiescent current matters.
MAX20419ATGE/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Up, Step-Down, Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Boost, Buck
- Output Type:
- Fixed
- Number of Outputs:
- 3
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.25V, 2.3V, 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 750mA, 3.6A, 3.6A
- Frequency - Switching:
- 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TQFN (4x4)
MAX20419ATGE/V+ FAQ
1.How can I place an order for MAX20419ATGE/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20419ATGE/V+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX20419ATGE/V+ reliable?
The price and inventory of MAX20419ATGE/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20419ATGE/V+ is usually 5 days.
3.What payment methods are accepted for MAX20419ATGE/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20419ATGE/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20419ATGE/V+?
MAX20419ATGE/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20419ATGE/V+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX20419ATGE/V+?
For technical support, including MAX20419ATGE/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20419ATGE/V+ requirements.
6.How does Aetrix verify that MAX20419ATGE/V+ is sourced from the original manufacturer or authorized distributors?
All MAX20419ATGE/V+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX20419ATGE/V+ meets industry standards.
7.What is the process for return or replacement of MAX20419ATGE/V+?
All MAX20419ATGE/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX20419ATGE/V+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX20419ATGE/V+ part is unused and in its original packaging.
Return procedure for MAX20419ATGE/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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